glpk 4.64 release information

[Andrew Makhorin]

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GLPK 4.64 Release Information
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Release date: December 02, 2017

GLPK (GNU Linear Programming Kit) is intended for solving large-scale
linear programming (LP), mixed integer linear programming (MIP), and
other related problems. It is a set of routines written in ANSI C89 and
organized as a callable library.

        In this release:

        The dual simplex solver routine was changed to perform more
        aggressive perturbation to prevent dual degeneracy and avoid
        stalling even if the current dual basic solution is strongly
        feasible (mainly if the objective is zero). Thanks to David
        Monniaux <address@hidden> for bug report
        and example model.

        The exact simplex solver routine was changed to perform
        terminal output according to the verbosity level (specified by
        the control parameter smcp.msg_lev). Thanks to Jeroen Demeyer
        <address@hidden> for bug report.

        A minor bug (related to MS Windows version) was fixed. Thanks
        to Heinrich Schuchardt <address@hidden> for bug report.

        An example model (Graceful Tree Labeling Problem) in MathProg
        was added. Thanks to Mike Appleby <address@hidden> for
        contribution.

        Three example models (Power plant LP scheduler, Neumann CA
        grid emulator generator) in MathProg and one in Cplex LP format
        were added. Thanks to Peter Naszvadi <address@hidden> for
        contribution.

See GLPK web page at <http://www.gnu.org/software/glpk/glpk.html>.

GLPK distribution can be ftp'ed from <ftp://ftp.gnu.org/gnu/glpk/> or
from some mirror ftp sites; see <http://www.gnu.org/order/ftp.html>.

MD5 check-sum is the following:

71a99d744589570f3ee98a566f27ea49 *glpk-4.64.tar.gz

GLPK is also available as a Debian GNU/Linux package. See its web page
at <http://packages.debian.org/stable/math/glpk-utils>.

Precompiled GLPK binaries (lib, dll, exe) for 32- and 64-bit MS Windows
can be downloaded from <http://winglpk.sourceforge.net/>.
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